Cubic and Tetrahexahedral Magnetite/Crystals from the Fowler Orebody, Zinc Corporation of America No.4 Mine, Balmat, St. Lawrence County, New York

摘要

The magnetite occurrence at Balmat, New York, is noteworthy because it produced crystallized magnetite specimens of exceptional quality and beauty; because the mineral association, magnetite and halite, is unusual, perhaps unique; and because of the unusual geochemistry of the environment, which produced a magnetite with zinc as an impurity that may have been instrumental in producing the unusual cubic and tetrahexahedral morphology. A unique set of geological circumstances led to a unique mineral assemblage.